Hand-threading loom-shuttle.



No. 784,761. I J I PATENTED MAR. 14, 1905. C E. SAGKETT.

HAND THREADING LOOM SHUTTLE.

AEPLIOATION FILED SEPT. 1, 1904.

W/TNESSES INVENTOR UNITED STATES Patented March 14, 1905.

PATENT OFFICE CHARLES E. SACKETT, OF FALL RIVER, MASSACHUSETTS, ASSIGNOR TO SACKETT-MARSHALL SHUTTLE COMPANY, OF FALL RIVER, MASSA- CHUSETTS, A CORPORATION OF RHODE ISLAND.

HAND-THREADING LOOIVl-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 784,761, dated March 14, 1905.

Application filed September 1, 1904. Serial No. 222,916.

To all whom it may concern:

Be it known that I, CHARLES E. SACKETT, a citizen of the United States, residing at Fall River, in the county of Bristol and State of Massachusetts, have invented a new and useful Improvement in Loom-Shuttles, (Hand- Threading,) of which the following is a specification.

This invention relates to that class of loomshuttles that are threaded by hand. All such shuttles require an open passage cut through the shuttle side terminating in the deliveryeye. Owing to the twisting effect upon the thread while rapidly unwinding from a fixed bobbin and to the high-speed reciprocatory movement of the shuttle, the thread in doubling at each pick of the shuttle is apt to twist itself out of this passage, meet some obstacle, break, and stop the loom.

It is the object of this invention to prevent the thread leaving the delivery-eye after it has been led into it. I attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a partial plan view of a handthreading loom-shuttle. Fig. 2 is a side view of the same Fig. 3, a horizontal sectional view on line A of Fig. 2 of that portion of the shuttle adjacent to the terminal outlet. Fig. 4 is a detail view of the longitudinal bar above the outlet-eye shown in Fig. 2, the eX- posed portion being shaded. Fig. 5 is a detail lateral view of the same bar as shown in Fig. 3. Fig. 6 is a section of the shuttle side immediately around the terminal outlet, showing the longitudinal bar arranged for left hand shuttles, as in Fig. 2. Fig. 7 is a similar section showing the bar arranged for a right-hand shuttle.

In all the figures similar numerals of reference refer to like parts.

1 is a hand-threading loom-shuttle of the usual type; 2, the bobbin; 3, the thread leaving it; 4, the threading-block; 5, the open vertical passage through the shuttle side; 6,

the terminal-eye outlet; 7, the usual thread-' groove.

This improvement consists in sinking a recess 8 around the terminal eye and withdrawing the end of the terminal tube or eye to the bed of the recess. The recess is made, preferably, U-shaped in order to provide an overhanging shelf 9, beneath which and above the outlet-eye a longitudinal bar 10 is arranged across the recess. (See Fig. 2.) This bar (see detail Figs. 4 and 5) is made with a shank 11, which is driven or screwed into the shuttle-body or the recess-walls, as at 12, on. one side of the vertical passage 5. The bar is then carried longitudinally across the vertical passage substantially at right angles to it and terminates, as at 1.3, as closely to the opposite recess-wall as will allow a thread to pass around its point. The bar is also spaced sufficiently below the overhanging shelf and from the bed of the recess to allow a thread to pass over and behind it. the exposed portion of the bar is straight. T he shank may be bent in any direction best adapted to secure it in the shuttle-body. Laterally the exposed portion of the bar is slightly curved inward, so as to terminate its point below the edge of the recess-walls, and outward where it crosses the vertical passage, so as to lift the thread as it sweeps along the shuttle side over the corners 14 of the vertical passage where it intersects the recess-walls. (See Figs. 3 and 5.)

It has been observed that the torsional twist given the thread in unwinding at high speedfrom the bobbin gives it a tendency 011 meeting any bar or wire to run in opposite directions in right or left hand shuttles. This invention seeks to take advantage of this action in making the fast end of the longitudinal bar. at the side of the recess toward which the thread will travel in either shuttle. (See Figs. 6 and 7'.) Thus the tendency of the thread will be to run away from the points of the bar 10 toward its closed end 11, where it is held fast, and the thread will not escape from the eye.

The action of threading is obvious. A single pull of the thread into the vertical pas sage causes it to encounter the bar, the slight inward curve slips it over the point, and the Longitudinally shuttle is threaded. The rise of the side walls from the bed of the recess near which the point of the bar terminates then prevents its getting under the point again, the outward lateral curve raises the thread over the corners and edges of the vertical slot, and if by a remote contingency the thread should enter the vertical slot its travel along the bar will lead it to the closed end and the next pick will return the thread to its working position in the outlet.

Having thus described my invention,what I claim, and desire to secure by Letters Patent, is

1. In aloom-shuttle adapted to be threaded by hand, the combination with the shuttle body, and the vertical thread-passage through the shuttle side terminating in the threadoutlet, of a recess in the shuttle side in the bed of which said outlet terminates, and a longitudinal. bar arranged in said recess above said outlet, having one of its ends bedded in the shuttle-body or recess-wall, at one side of said vertical passage, crossing it substantially at right angles, the other end of said bar terminating above said thread-outlet substantially parallel with the fast end of said bar, space being reserved behind and around the point of said bar for a thread to pass between it and the recess-walls substantially as described and shown.

2. In aloom-shuttle adapted to be threaded by hand, the combination with the shuttlebody, the vertical thread-passage through the shuttle side, and the terminal outlet, of a recess arranged about said outlet in the bed of which said outlet terminates, and a longitudinal bar crossing said recess within its walls, having one fast end and one free end at either side of said vertical passage, said ends being arranged above said outlet and. substantially parallel with each other, the ends of said bar being reversible when applied relatively to a right or a left hand shuttle substantially as described and shown.

3. In aloom-shuttle adapted to be threaded by hand, the combination with the shuttlebody having a recess, and the vertical threadpassage, of a terminal outlet arranged in the bed of said recess in the shuttle side, alongitudinal bar arranged across said recess, above said outlet, having one fast and one free end at either side of the vertical passage, said bar having a slight lateral and longitudinal curvature as it crosses the vertical passage, sufficient to lift the thread in passing along the shuttle side over the edges and corners of said vertical passage where it intersects said recess-walls, substantially as described and shown.

4. In aloo1n-shuttle adapted to be threaded by hand the combination with the shuttlebody and the terminal outlet of a U-shaped recess arranged about said outlet, the side walls of said recess being joined by a longitudinal wall at top, a longitudinal bar arranged across said recess beneath said top wall and above the outlet-eye, said bar having one fast and one free end, and a vertical passage through the shuttle side arranged behind said bar a short distance from it, and terminating in said outlet, substantially as described and shown.

5. In a loom-shuttle adapted to be threaded by hand, the combination with the shuttle body having a recess in its side, and a suitable thread-passage between them, of a longitudinal thread-controlling bar arranged in said recess, having one fast and one free end, said ends being constructively reversible when applied relatively to a right or a left hand shuttle substantially as described and shown.

6. In aloom-shuttle adapted to be threaded by hand, the combination with the shuttlebody, a recess in its side, and a suitable thread-passage between them, of a longitudinal bar arranged in said recess crossing said thread-passage, having one fast and one free end, said bar having a laterally-inward-turned point, and a laterally-outwardturned curved section, substantially as described and shown.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 29th day of August, 1904.

CI-IAS. E. SACKETT. Witnesses g S. H. FAIRGHILD,

BRONSON S. BUN. 

